M62055FP View Datasheet(PDF) - Renesas Electronics
Part Name
Description
Manufacturer
M62055FP Datasheet PDF : 10 Pages
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M62055FP
2. Pin (2) (WD pin) Input Frequency, Input Pulse Width, Charge/Discharge Time
When input of (2) WD is normal, TC waveform (3) is as shown in figure 3.
xV
Pin (3)
t1
Pin (2)
t2
tWDIN
VTH2(H) = 2.4V
VTH2(L) = 1.0V
t1
=
C
⋅
R1
⋅
ln
3
2
–
X
X R1 + 1 – 3
t2 = 1000 ⋅ C ⋅ R1 ⋅ ln
1000
R1 – 2
1000
Figure 3
• Conditions of an input to pin (2) (WD pin)
(1) Input period should be tWD or less. (Pin discharge is completed before the arrival of VTH2(H) = 2.4 V)
1.2
⋅
1
C
⋅
R1
<
f
(2) Input pulse width tWDIN should be t2 or less.
Rev.2.00 Mar 10, 2006 page 6 of 9
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